674758641 has 4 divisors (see below), whose sum is σ = 899678192. Its totient is φ = 449839092.

The previous prime is 674758627. The next prime is 674758661. The reversal of 674758641 is 146857476.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 674758641 - 2⁹ = 674758129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (674758621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112459771 + ... + 112459776.

It is an arithmetic number, because the mean of its divisors is an integer number (224919548).

Almost surely, 2^674758641 is an apocalyptic number.

It is an amenable number.

674758641 is a deficient number, since it is larger than the sum of its proper divisors (224919551).

674758641 is a wasteful number, since it uses less digits than its factorization.

674758641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224919550.

The product of its digits is 1128960, while the sum is 48.

The square root of 674758641 is about 25976.1167421152. The cubic root of 674758641 is about 877.1007552223.

The spelling of 674758641 in words is "six hundred seventy-four million, seven hundred fifty-eight thousand, six hundred forty-one".